Martyn Shaw-2 wrote:
>
> Thanks Leland, that progress dialog was astray! I can't see the
> 'compressor not completing' issue.
>
> Martyn
>
> Leland wrote:
>> This should be fixed now.
>>
>> Don't know about the other problems that are tied to the two issues on
>> the checklist.
>>
>> Leland
Compression with Normalize of an hour long track completes here now on Win
XP, and Nyquist Effect plug-ins cancel cleanly.
Since Nyquist Analyse plugs have a problem, I checked the Generate ones, and
find there is no progress dialogue at all - Click Track of 120 measures
takes 30 seconds here, but there is no indication of what is going on - not
even a busy cursor.
On checking the progress dialogues of compressor and Nyquist effects, I find
here the "remaining time" is now back to the behaviour I usually see - a
serious underestimate at first, with remaining time progressively increasing
until about one quarter through. After that, it is accurate and declines
correctly. Compressor indicates 7 minutes remaining after going for 30
seconds at a 90 minute track, but takes 22 minutes; Highpass indicates 3
minutes after 30 seconds at the same track but takes 8 minutes. I think
people would not wait more than 30 seconds to see the expected time before
going to do something else, so this isn't ideal. But Martyn said he was
still getting mild overestimation at the start. Could it be something to do
with my only having 10 GB disc space?
Gale
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Gale (Audacity Team) wrote:
> Since Nyquist Analyse plugs have a problem, I checked the Generate ones, and
> find there is no progress dialogue at all - Click Track of 120 measures
> takes 30 seconds here, but there is no indication of what is going on - not
> even a busy cursor.
Gale, you may well have a local problem here. I thought we had
broadly similar similar systems but 120 measures (other bits set to
default) takes about 2 secs here.
> On checking the progress dialogues of compressor and Nyquist effects, I find
> here the "remaining time" is now back to the behaviour I usually see - a
> serious underestimate at first, with remaining time progressively increasing
> until about one quarter through. After that, it is accurate and declines
> correctly. Compressor indicates 7 minutes remaining after going for 30
> seconds at a 90 minute track, but takes 22 minutes;
Indicates about 7 mins at the start here, drops to a total of 6:45
then completes in 4:57. The second pass is simpler and I think that
accounts for the difference, although I haven't measured it.
Highpass indicates 3
> minutes after 30 seconds at the same track but takes 8 minutes.
It said about 33 secs here at the start and probably completed in
about 2 mins, but I was looking at the Task Manager and concluding
that it was IO bound (only about 15% processor in use).
I think
> people would not wait more than 30 seconds to see the expected time before
> going to do something else, so this isn't ideal. But Martyn said he was
> still getting mild overestimation at the start. Could it be something to do
> with my only having 10 GB disc space?
Quite possibly. I take it you mean 10G left / free?
Martyn
> Gale
>
>
>

| From Martyn Shaw <martynshaw99@...>
| Sun, 25 Jan 2009 23:47:19 +0000
| Subject: [Audacity-devel] Progress dialog for Nyquist and Compressor effects
> Gale (Audacity Team) wrote:
> > Since Nyquist Analyse plugs have a problem, I checked the Generate ones, and
> > find there is no progress dialogue at all - Click Track of 120 measures
> > takes 30 seconds here, but there is no indication of what is going on - not
> > even a busy cursor.
>
> Gale, you may well have a local problem here. I thought we had
> broadly similar similar systems but 120 measures (other bits set to
> default) takes about 2 secs here.
I think we do have similar systems on paper, but yours often seems
faster when we compare some Audacity action. But unless it's
something I'm testing for a specific reason like latency, or some
known speed- or memory-related bug, I don't always reboot and
shut down all other programs to do it. And I have a lot of
security running (anti-virus, firewall, anti-spyware and zero-day
detection, all at quite stringent levels).
Anyway, it only takes me about 3 seconds now to generate that
120 measures Click Track, but this is after Leland's Nyquist
progress bar updates.
> > On checking the progress dialogues of compressor and Nyquist effects, I find
> > here the "remaining time" is now back to the behaviour I usually see - a
> > serious underestimate at first, with remaining time progressively increasing
> > until about one quarter through. After that, it is accurate and declines
> > correctly. Compressor indicates 7 minutes remaining after going for 30
> > seconds at a 90 minute track, but takes 22 minutes;
>
> Indicates about 7 mins at the start here, drops to a total of 6:45
> then completes in 4:57. The second pass is simpler and I think that
> accounts for the difference, although I haven't measured it.
>
> Highpass indicates 3
> > minutes after 30 seconds at the same track but takes 8 minutes.
>
> It said about 33 secs here at the start and probably completed in
> about 2 mins, but I was looking at the Task Manager and concluding
> that it was IO bound (only about 15% processor in use).
>
> I think
> > people would not wait more than 30 seconds to see the expected time before
> > going to do something else, so this isn't ideal. But Martyn said he was
> > still getting mild overestimation at the start. Could it be something to do
> > with my only having 10 GB disc space?
>
> Quite possibly. I take it you mean 10G left / free?
I do mean 10 GB free (out of 109 GB), though my impression has always
been of underestimation at the start, going back to 1.2 when I still had a
Windows 98 machine.
I may try on my secondary Windows XP machine (256 MB RAM, 1.6 GHz but
one of its 40 GB drives is almost empty). I'll let you know sometime.
Thanks
Gale

On Sun, 2009-01-25 at 23:47 +0000, Martyn Shaw wrote:
> Gale (Audacity Team) wrote:
> > Since Nyquist Analyse plugs have a problem, I checked the Generate ones, and
> > find there is no progress dialogue at all - Click Track of 120 measures
> > takes 30 seconds here, but there is no indication of what is going on - not
> > even a busy cursor.
>
> Gale, you may well have a local problem here. I thought we had
> broadly similar similar systems but 120 measures (other bits set to
> default) takes about 2 secs here.
On my (loaded) system it takes about 8 seconds, but gets a progress
dialogue for that period, which starts off predicting 15 seconds, then
runs down from 7 to zero correctly.
This is a small enough section that it fits in memory (disc I/O cache)
quite happily. Going up to 500 measures does take a while to dismiss the
dialogue and get started, but after a second or to gets started on it's
33 seconds of processing, which is still CPU bound although it is now
writing to disk a reasonable amount. The indicated time remaining starts
as 2:54 but corrects down over the first few seconds (obviously the
start-up lag has confused the time calculation).
> > On checking the progress dialogues of compressor and Nyquist effects, I find
> > here the "remaining time" is now back to the behaviour I usually see - a
> > serious underestimate at first, with remaining time progressively increasing
> > until about one quarter through. After that, it is accurate and declines
> > correctly. Compressor indicates 7 minutes remaining after going for 30
> > seconds at a 90 minute track, but takes 22 minutes;
Started at 17:55, spend first 30 sec wobbling a bit as disc got into the
swing of processing. Took less to complete, because it accelerated into
the second half as Martyn says (not least because the data will be much
better cached that the first pass).
> Indicates about 7 mins at the start here, drops to a total of 6:45
> then completes in 4:57. The second pass is simpler and I think that
> accounts for the difference, although I haven't measured it.
> I think
> > people would not wait more than 30 seconds to see the expected time before
> > going to do something else, so this isn't ideal. But Martyn said he was
> > still getting mild overestimation at the start. Could it be something to do
> > with my only having 10 GB disc space?
>
> Quite possibly. I take it you mean 10G left / free?
If you have been running with less than 10% free space for any amount of
time on a Windows system then you are likely to have truly awful disk
I/O rates (on top of a fragmenting file system and a backwards memory
management algorithm). I'm more surprised that anything works than that
heavy audio processing has erratic processing times.
For my tests I was running (as normal) from a 5GB XFS partition I keep
for temporary working files, which after compression is 67% full (mostly
composed of that project and the source tree I build source tarballs
from).
Richard

Gale (Audacity Team) wrote:
> Since Nyquist Analyse plugs have a problem, I checked the Generate ones, and
> find there is no progress dialogue at all - Click Track of 120 measures
> takes 30 seconds here, but there is no indication of what is going on - not
> even a busy cursor.
>
I have a resolution for this. I'll check it in when I get up.
Leland

Leland wrote:
> Gale (Audacity Team) wrote:
>> Since Nyquist Analyse plugs have a problem, I checked the Generate ones, and
>> find there is no progress dialogue at all - Click Track of 120 measures
>> takes 30 seconds here, but there is no indication of what is going on - not
>> even a busy cursor.
>>
> I have a resolution for this. I'll check it in when I get up.
>
I've committed the fix for this, but it affects Generate, Effect, and
Analyze kinds of effects. So, it might be a good idea to give it a good
workout with different mixes of tracks...single, multiple, mono, stereo.
This did require modifying Nyquist and I didn't generate a patch for it,
but it will be a little different with the new version anyway.
Leland